<template>
    <div class="app-container">
        <el-form label-width="120px">
            <el-form-item label="信息描述">
                <el-tag type="info">excel模版说明</el-tag>
                <el-tag>
                    <i class="el-icon-download" />
                    <a :href="'/static/test2.xlsx'">点击下载模版</a>
                </el-tag>

            </el-form-item>

            <el-form-item label="选择Excel">
                <el-upload
                    ref="upload"
                    :auto-upload="false"
                    :on-success="fileUploadSuccess"
                    :on-error="fileUploadError"
                    :disabled="importBtnDisabled"
                    :limit="1"
                    :action="BASE_API+'/eduservice/edusubject/fileupload'"
                    name="file"
                    accept="application/vnd.ms-excel"
                >
                    <el-button
                        slot="trigger"
                        size="small"
                        type="primary"
                    >选取文件</el-button>
                    <el-button
                        :loading="loading"
                        style="margin-left: 10px;"
                        size="small"
                        type="success"
                        @click="submitUpload"
                    >上传到服务器</el-button>
                </el-upload>
            </el-form-item>
        </el-form>
    </div>
</template>
<script>
export default {
    data() {
        return {
            BASE_API: process.env.BASE_API, // 接口API地址
            importBtnDisabled: false, // 按钮是否禁用,
            loading: false
        }
    },
    created() {},
    methods: {
        submitUpload() {
            this.importBtnDisabled = true
            this.loading = true
            this.$refs.upload.submit()
        },

        fileUploadSuccess(response) {
            if (response.success === true) {
                this.fileUploadBtnText = '导入成功'
                this.loading = false
                this.$message({
                    type: 'success',
                    message: '添加课程分类成功'
                })
                this.$route.push({ path: '/subject/list' })
            }
        },

        fileUploadError(response) {
            this.fileUploadBtnText = '导入失败'
            this.loading = false
            this.$message({
                type: 'error',
                message: '添加课程分类失败'
            })
        }
    }
}
</script>
